package javato.cbreakpoints;

/**
 * Copyright (c) 2006-2009,
 * Koushik Sen    <ksen@cs.berkeley.edu>
 * All rights reserved.
 * <p/>
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 * <p/>
 * 1. Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 * <p/>
 * 2. Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 * <p/>
 * 3. The names of the contributors may not be used to endorse or promote
 * products derived from this software without specific prior written
 * permission.
 * <p/>
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
public class BoundedRaceBreakpoint extends RaceBreakpoint {
    final private static int bound = Integer.getInteger("cbreakpoint.bound",100);
    private static int iter = 0;

    public BoundedRaceBreakpoint(int id,Object obj, boolean write) {
		super(id, obj, write);
    }

    public BoundedRaceBreakpoint(Object obj, boolean write) {
		this(1, obj, write);
    }

	/*
    public boolean predicateGlobal(CBreakpoints cb) {
        if ((cb instanceof BoundedRaceBreakpoint) && obj == ((BoundedRaceBreakpoint)cb).obj){
            System.out.println("Race detected ");
            return true;
        }
        return false;
    }
	*/

    public boolean predicateLocal() {
        synchronized (BoundedRaceBreakpoint.class) {
            if (iter>bound) {
                return false;
            } else {
                iter++;
            }
        }
        return super.predicateLocal();
    }
}
